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Rama09 [41]
4 years ago
7

I have to complete this in a day plz help

Mathematics
1 answer:
Bas_tet [7]4 years ago
5 0

Answer:

The Sample space DOES change, each event within the sample space DOES NOT change, The probability of each event does change. The new probability of drawing a red marble is p(R)= 1/

Step-by-step explanation:

I dont know how many red marbles are in the Jar before so I cant do that for you.

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You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who ow
Nadya [2.5K]

Answer:

Test statistic =1.30

Step-by-step explanation:

Given that you are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.

                                             Men                Women            Difference

Sample size n                        60                     120

Proportion p_1, p_2              0.45                   0.35                 0.10

60 120 180

0.45 0.35 0.383333333

27 42 69

p = 0.3833

Std error for proportion difference = \bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})\\=0.3833(0.6167)(\frac{1}{60}+\frac{1}{120})\\=0.0769

Test statistic = \frac{p_1-p_2}{\bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})  }

=1.3008

=1.30

4 0
3 years ago
If carina can ride her bike at a speed of 7 mph, it will take her 3 hours to travel 21 miles. True or false?
nasty-shy [4]

Answer:

True

Step-by-step explanation:

We know that distance = rate * time

21 miles = 7 miles per hours * 3 hours

21 miles = 21 miles

True

8 0
3 years ago
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It took Lisa 2 hours to read the first 100 pages of a book. Then she read the last 44 pages in 1 hour. How many pages did she re
egoroff_w [7]
1.25 pages per minute
4 0
4 years ago
Three friends go grocery shopping together, and each buys the same kind of strawberries. Akio buys 2 pounds (lb) and pays $1.50.
Burka [1]

Answer:

1.50$ for (1 lb) make sure you pick the graph with the coat that go to 7 not 12!

Step-by-step explanation:

8 0
3 years ago
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Which table represents a direct variation?
Sloan [31]

Answer:

table c

Step-by-step explanation:

4 0
3 years ago
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